Have the students do the "Do-Now" at the beginning of class. Have the students share their definitions with a partner and the class. Agree on the best definition for each word. The definitions do not have to be mathematical.
At the end of class have the students define the words on the "Ticket-Out-the-Door" At the beginning of the next class discuss how the math definition and the real world definition are similar.
Have the students do the "Do-Now" at the beginning of class. Have the students share their definitions with a partner and the class. Agree on the best definition for each word. The definitions do not have to be mathematical.
At the end of class have the students define the words on the "Ticket-Out-the-Door" At the beginning of the next class discuss how the math definition and the real world definition are similar.
Below is a lesson plan and all materials for an introduction to proving lines parallel.
Prentice Hall - Lesson 3.4
I use this as a matching activity after I have taught what kinds of angles are formed when two parallel lines are cut by a transversal.